Sega offers double the demo in this week's North American PlayStation Store update, with the Yakuza 3 and Sonic & SEGA All-Stars Racing demos leading the charge of new and interesting things to download to your PlayStation 3.

If you're into downloadable content add-ons for games that you already own, the Assassin's Creed II "Bonfire of the Vanities" and Resident Evil 5 "Lost In Nightmares" expansions are also here. Same for the Star Wars: The Force Unleashed Hoth Mission Pack, breathing some new life into your old copy of the LucasArts game. There's much more, including the highly anticipated trainwreck release of PlayStation Network reality show The Tester and plenty of price drops.